GB/T 16475-2023 PDF English
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Temper designation system for wrought aluminium and aluminium alloy products
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GB/T 16475-2008 | English | 75 |
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Temper designation system for wrought aluminium and aluminium alloy
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GB/T 16475-1996 | English | 399 |
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Temper designation system for wrought aluminium and aluminium alloy
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GB/T 16475-2023: PDF in English (GBT 16475-2023) GB/T 16475-2023
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.150.10
CCS H 61
Replacing GB/T 16475-2008
Temper Designation System for Wrought Aluminum and
Aluminum Alloy Products
ISSUED ON. AUGUST 6, 2023
IMPLEMENTED ON. MARCH 1, 2024
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative References... 4
3 Terms and Definitions... 4
4 General... 4
5 Basic Temper Designation... 5
6 Detailed Temper... 5
Appendix A (Informative) Comparison List of Temper Designations Named in This Document and
That of Previously Used... 15
Bibliography... 16
Foreword
This Document was drafted as per the rules specified in GB/T 1.1-2020 Directives for
Standardization – Part 1.Rules for the Structure and Drafting of Standardizing Documents.
This Document replaced GB/T 16475-2008 Temper Designation System for Wrought Aluminum
and Aluminum Alloy. Compared with GB/T 16475-2008, the major technical changes of this
Document are as follows besides the structural adjustments and editorial modifications.
a) Add tempers of T39, T4P, T61, T64, T66, T6A, T6B, T77, T84, T89A (see 6.3.3 of this
Edition);
b) Change the interpretation of tempers of T73, T74, T76, T79 (see 6.3.3 of this Edition;
6.2.5 of the 2008 Edition);
c) Add temper of T62A and its interpretation in "heat treatment verification state of T state"
(see 6.4 of this Edition; Clause 8 of the 2008 Edition);
d) Changed the interpretation of tempers of W_h/_51, W_h/_52, W_h/_54 (see 6.5 of this
Edition; 7.2 of the 2008 Edition).
Please note some contents of this Document may involve patents. The issuing agency of this
Document shall not assume the responsibility to identify these patents.
This Document was proposed by China Non-Ferrous Metals Industry Association.
This Document shall be under the jurisdiction of National Technical Committee on Non-
Ferrous Metals of Standardization Administration of China (SAC/TC 243).
Drafting organizations of this Document. Southwest Aluminum (Group) Co., Ltd.; Nonferrous
Metals Technology and Economic Research Institute Co., Ltd.; GRIMAT Engineering Institute
Co., Ltd.; Fujian Nanping Aluminum Sheet & Strip Processing Co., Ltd.; Fujian Xiangxin
Shares Co., Ltd.; Tianjin Zhongwang Aluminum Co., Ltd.; Chalco Ruimin Co., Ltd.; Northeast
Light Alloy Co., Ltd.; Jiangsu Dingsheng New Energy Materials Co., Ltd.; Shandong Nanshan
Aluminum Co., Ltd.; Guangdong Haomei New Material Co., Ltd.; Northwest Aluminum Co.,
Ltd.; ALG Aluminum Inc.; and Xiamen Xiashun Aluminum Foil Co., Ltd.;
Chief drafting staffs of this Document. Deng Guangyan, Ge Lixin, Pan Zhen, Li Xiwu, Zhang
Liufeng, Liu Fubing, Du Hengan, Wang Aijun, Huang Ruiyin, Gao Xinyu, Zhu Kai, Zhou Hua,
Wu Baojian, Yan Zhaohui, Ding Gangping, Wang Shouye, Ren Yuelu, and Zhang Huihong.
The historical editions replaced by this Document are as follows.
--- GB/T 16475-1996 was first-time published in 1996; first-time revised in 2008;
--- It is second-time revised hereby.
Temper Designation System for Wrought Aluminum and
Aluminum Alloy Products
1 Scope
This Document specifies the temper designation for wrought aluminum and aluminum alloy
products.
This Document is applicable to wrought aluminum and aluminum alloy products produced by
rolling, extrusion, stretching, forging and other methods.
2 Normative References
The provisions in following documents become the essential provisions of this Document
through reference in this Document. For the dated documents, only the versions with the dates
indicated are applicable to this Document; for the undated documents, only the latest version
(including all the amendments) is applicable to this Document.
GB/T 8005.1 Aluminum and aluminum alloy terms and definitions - Part 1.Product and
method of processing and treatment
3 Terms and Definitions
For the purposes of this Document, the terms and definitions given in GB/T 8005.1 apply.
4 General
4.1 The temper designation is divided into basic temper designation and detailed temper
designation. The basic temper designation is represented by an English capital letter; and the
detailed temper designation is represented by one or more Arabic numerals or English capital
letters suffixed to the basic temper designation. These Arabic numerals or English capital letters
represent the basic treatment or special treatment that affects the product characteristics.
4.2 When the basic temper designation is suffixed with "×" or "_", it shall represent a series of
detailed temper designations with certain common characteristics. Among them, "×" represents
any unspecified Arabic numeral or English capital letter, and "_" represents any unspecified
one or more Arabic numerals or English capital letters. For example, "H2×" indicates any
temper in "H21~H29"; "H××4" indicates any temper in "H114~H194" or "H224~H294" or
"H324~H394"; "T_51" indicates any temper with the last digit of the temper designation suffix
being "51", such as "T351, T651, T6151, T7351, T7651", etc.
4.3 The mechanical properties of products corresponding to each detailed temper are shown in
the Registration Form for Tempers and Properties of Wrought Aluminum and Aluminum Alloy
Products.
4.4 The comparison list of the temper designations named in this Document and that used
previously is shown in Appendix A.
5 Basic Temper Designation
5.1 F - Free processing state
It is applicable to products that have no special requirements for work hardening and heat
treatment conditions during the forming process. The mechanical properties of products in this
state are not specified.
5.2 O - Annealed state
It is applicable to the product state that obtains the lowest strength after full annealing.
5.3 H - Work-hardening state
It is applicable to products that have been hardened to improve their strength.
5.4 W - Solution heat treatment state
It is applicable to an unstable state of natural aging at room temperature after solution heat
treatment. This state is not used as the product delivery state, but only indicates that the product
is in the natural aging stage.
5.5 T - Stable state of heat treatment different from F, O or H
It is applicable to the stable state that is reached with (or without) work hardening after high
temperature forming or solution heat treatment. This state is only applicable to heat-treatable
strengthening aluminum alloys.
6 Detailed Temper
6.1 Detailed temper of the O state
O may be followed by a number or a numerical subscript other than zero. The detailed temper
of the O state shall comply with the provisions of Table 1.
...... Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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